John S. McCain Jr.

John Sidney "Jack" McCain Jr. (17 January 1911-22 March 1981) was a US Army Admiral who was commander-in-chief of the Pacific Command from 1968 to 1972.

Biography
John Sidney McCain Jr. was born in Council Bluffs, Iowa in 1911 and grew up in Washington DC. McCain was the son of Admiral John S. McCain Sr., and he later became the father of John McCain. He graduated from the Naval Academy in 1931, after which he entered the submarine service of the US Navy. He sunk several Japanese ships during World War II and was awarded both the Silver Star and the Bronze Star, and he specialized in amphibious commands after the war. McCain led the 1965 invasion of the Dominican Republic, and he later served in several posts in Washington. McCain was known to be a staunch anti-communist and an advocate of naval power, being nicknamed "Mr. Seapower". He later served as commander-in-chief of the Pacific Command, and he had supreme command of the US forces engaged in the Vietnam War from 1968 to 1972; he was a supporter of President Richard Nixon's policy of Vietnamization, although he also pressed for the Cambodian Campaign and Operation Lam Son 719. He retired in 1972 and died in a plane crash over the north Atlantic in 1981.